Leek stubble cutting mechanism

Abstract

The utility model relates to a leek stubbing mechanism, through connecting support setting in the front end of mobile car, set up driving mechanism on mobile car, including cutting gear box and power output shaft, cutting gear box is fixed in connecting support, and output end is connected with driving mechanism transmission, the top of power output shaft is connected with the output end transmission of cutting gear box, and the bottom coaxial butt joint bucket, the opening outer ring wall of bucket is coaxially covered ring disc, and a plurality of cutting flail knives for cutting leek are fixed on the circumference of ring disc. The structure is simple and flexible, the bucket structure can avoid the old leek straw cut down all over the ground, reduce the artificial labor intensity, in addition, the original disc saw blade is changed into a plurality of independent harvesting stubbing flail knives connected on the ring disc, the structure cost is low, convenient to replace, can reach the effect of stubbing leek straw, thereby liberating the uncomfortable problem of back supporting type grass shrub harvester lying on the back of labor worker.

Description

Technical Field

[0001] This utility model relates to a leek pruning mechanism, specifically a pruning mechanism for old leek stalks. Background Technology

[0002] As we all know, chives are perennial herbaceous plants, but if they are grown for too long, their quality will decline, the leaves will become thin and weak, and the taste will be worse. We need to rejuvenate chives by cutting them back every year. Currently, the harvesting of old chive stalks after cutting and seeding in greenhouses is done by a manual back-mounted engine that drives a circular saw blade to rotate at high speed through a drive shaft. This is because it is inconvenient to use large agricultural machinery in greenhouses, and there is no suitable machinery on the agricultural market that can harvest cuts in contact with the ground. Therefore, we can only use a manual back-mounted straw harvester to harvest the cuts. However, the back-mounted straw harvester has many drawbacks, such as low working efficiency, strong vibration when lying on the back, loud noise, and pollution from the small engine surrounding the body, which is difficult to bear. Utility Model Content

[0003] The main purpose of this utility model is to provide a leek coppicing mechanism to solve the problems of low working efficiency, strong vibration and noise caused by the back-supported grass and shrub harvester, and unbearable pollution from the small engine emissions when the harvester is lying on the back.

[0004] To achieve the above objectives, this utility model provides a leek cutting mechanism, which is set at the front end of a mobile vehicle via a connecting bracket. The mobile vehicle is equipped with a drive mechanism, including a cutting gearbox and a power output shaft.

[0005] The cutting gearbox is fixed on the connecting bracket, and its input end is connected to the drive mechanism for transmission.

[0006] The top of the vertically set power output shaft is connected to the output end of the cutting gearbox, and the bottom end is coaxially connected to the swing barrel. The outer ring wall of the swing barrel opening is coaxially fitted with a ring disc, and multiple cutting blades for cutting chives are fixed around the circumference of the ring disc.

[0007] A preferred embodiment is that the drive mechanism includes a driven sprocket, a drive sprocket, and a drive component for rotating the drive sprocket;

[0008] The driven sprocket is fixedly mounted on the output end of the cutting gearbox, and a chain is fitted between the driven sprocket and the drive sprocket.

[0009] A preferred option is to use a diesel engine or a gasoline engine as the drive unit.

[0010] A preferred embodiment is that the leek pruning mechanism also includes a tensioning mechanism, which comprises a tensioning sprocket, a slide rail, and a spring.

[0011] The vertically set slide is fixedly connected to the connecting bracket, and the slider is slidably installed;

[0012] An extension block is fixedly connected to the slider, and a tension sprocket is rotatably mounted on the extension block via a connecting shaft and meshes with the chain;

[0013] The two ends of the vertically positioned spring are fixedly connected to the top wall of the slider and the slide, respectively.

[0014] A preferred embodiment is that the leek cutting mechanism also includes a splitting mechanism, which includes a truss and a V-shaped plate, with the two ends of the truss being fixedly connected to the closing end of the V-shaped plate and the connecting bracket, respectively.

[0015] The flared end of the V-shaped plate faces the power output shaft;

[0016] The V-shaped plate, power take-off shaft, and moving vehicle are arranged in sequence.

[0017] A preferred solution is to fix a partition at the bottom of the V-shaped plate, with a notch on one side of the partition, and the throwing bucket is located at the notch.

[0018] A preferred embodiment is that the corner of the V-shaped plate is located directly in front of the power take-off shaft.

[0019] The beneficial effects of the above scheme are:

[0020] The drive mechanism on the mobile trolley starts, and power is transmitted to the cutting gearbox. The cutting gearbox then performs speed-changing transmission to match the required speed of the cutting blades, transmitting power downwards through a vertical power output shaft. The bottom of the power output shaft drives the spinning drum to rotate at high speed, causing the coaxially mounted ring disc to rotate synchronously. Multiple cutting blades distributed around the circumference of the ring disc rotate, creating a centrifugal-driven cutting surface. Under the action of centrifugal force, the blade edges perform a radial high-speed cutting motion. The operator pushes the mobile trolley forward, and the cutting area creates relative motion with the chive planting rows, thus completing the rapid cutting of the chives. This structure is simple, flexible, and easy to operate. In addition, the circular saw blade in the existing technology is replaced with multiple independent harvesting and cutting blades connected to the ring disc. This structure is low-cost, easy to replace, and can achieve the effect of cutting chive stalks, thus freeing up the back of the worker from the problem of the back-supported straw harvester. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the front view of the structure of this utility model;

[0023] Figure 2 yes Figure 1 A top-view structural diagram;

[0024] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 4 yes Figure 3 A schematic diagram of the front view structure.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Connecting bracket; 2. Swing barrel; 3. Tensioning sprocket; 4. Chain; 5. Driven sprocket; 6. Power output shaft; 7. Cutting blade; 9. Cutting gearbox; 10. Ring disc; 20. Drive mechanism; 21. Drive sprocket; 30. Tensioning mechanism; 31. Slide rail; 32. Spring; 33. Slider; 34. Extension block; 35. Connecting shaft; 40. Disengaging mechanism; 41. Rig; 42. V-shaped plate; 43. Partition plate; 430. Notch. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0029] like Figures 1-4 As shown, this embodiment provides a leek cutting mechanism, which is set at the front end of a mobile vehicle (not shown) via a connecting bracket 1. The mobile vehicle adopts existing technology, so it will not be described in detail. A drive mechanism 20 is set on the mobile vehicle, as shown... Figure 3 As shown, the drive mechanism 20 includes a driven sprocket 5, a drive sprocket 21, and a drive component (not shown) for rotating the drive sprocket 21. The driven sprocket 5 is fixedly mounted on the output end of the cutting gearbox 9, and a chain 4 is fitted onto both the driven sprocket 5 and the drive sprocket 21. The drive component is a miniature diesel engine or a miniature gasoline engine. The miniature diesel engine or miniature gasoline engine drives the drive sprocket 21 to rotate, and the drive sprocket 21 drives the driven sprocket 5 to rotate via the chain 4. Figure 1 , Figure 2As shown, the chive cutting mechanism includes a cutting gearbox 9 (which can be considered as a gearbox in the prior art) and a power output shaft 6. The cutting gearbox 9 is fixed on the connecting bracket 1, and the input end of the cutting gearbox 9 is connected to the drive mechanism 20. The top end of the vertically arranged power output shaft 6 is connected to the output end of the cutting gearbox 9, and the bottom end of the power output shaft 6 is coaxially connected to the swing bucket 2 (that is, the bottom end of the power output shaft 6 is fixedly connected to the outer bottom wall of the swing bucket 2). The outer ring wall of the opening of the swing bucket 2 is coaxially fitted with a ring disc 10, and multiple cutting blades 7 for cutting chives are fixed around the circumference of the ring disc 10.

[0030] The drive mechanism 20 on the mobile vehicle starts, and power is transmitted to the cutting gearbox 9 through the drive mechanism 20. The cutting gearbox 9 transmits power through a speed change to match the required speed of the cutting blades 7, and transmits power downward through the vertical power output shaft 6. The bottom end of the power output shaft 6 drives the spinning barrel 2 to rotate at high speed, which drives the coaxially mounted ring disk 10 to rotate synchronously. Multiple cutting blades 7 distributed around the circumference of the ring disk 10 form a centrifugal-driven cutting surface as they rotate. Under the action of centrifugal force, the blade edges make a radial high-speed cutting motion. The operator pushes the mobile vehicle forward, and the cutting area forms a relative motion with the chive planting row, thus completing the rapid cutting of the chives. This structure is simple, flexible, and easy to operate. In addition, the circular saw blade in the existing technology is replaced with multiple independent harvesting and stubble cutting blades 7 connected to the ring disk 10. This structure is low-cost and facilitates the replacement of the cutting blades 7. This structural design also eliminates the problem of the back-supported grass and shrub harvester requiring the worker to lean on the back.

[0031] like Figure 3 As shown, the leek cutting mechanism also includes a tensioning mechanism 30, which includes a tensioning sprocket 3, a slide rail 31, and a spring 32. The vertically arranged slide rail 31 is fixedly connected to the connecting bracket 1, and a slider 33 slides within the slide rail 31. An extension block 34 is fixedly connected to the slider 33. The tensioning sprocket 3 is rotatably mounted on the extension block 34 via a connecting shaft 35. A bearing (not shown) is mounted on the extension block 34. The outer ring of the bearing is fixedly mounted on the extension block, and the inner ring of the bearing is fixedly connected to the connecting shaft. The tensioning sprocket 3 meshes with the chain 4. The two ends of the vertically arranged spring 32 are fixedly connected to the top wall of the slider 33 and the slide rail 31, respectively. The vertically arranged spring 32 is considered to be arranged along the length of the slide rail. The slider 33 adjusts the tensioning sprocket 3 up and down through the spring 32, thereby achieving the function of the tensioning sprocket 3 limiting the chain.

[0032] like Figure 3As shown, the leek pruning mechanism also includes a spreading mechanism 40, which includes a frame 41 and a V-shaped plate 42. The two ends of the frame 41 are fixedly connected to the constricted end of the V-shaped plate 42 and the connecting bracket 1, respectively. The flared end of the V-shaped plate 42 faces the power output shaft 6. The V-shaped plate 42, the power output shaft 6, and the moving vehicle are arranged in sequence. The corner of the V-shaped plate 42 is located directly in front of the power output shaft 6. The spreading mechanism 40 is fixed to the front end of the connecting bracket 1 via the frame 41. At this time, the flared end of the V-shaped plate 42 faces the direction of the power output shaft 6, forming a V-shaped guide channel. The constricted end of the V-shaped plate 42 is rigidly connected to the connecting bracket 1 via the frame 41. The V-shaped plate 42 first contacts the leek clump to be harvested, and uses the forward power of the moving vehicle to spread the dense leek stalks to both sides. Within the channel opened by the V-shaped plate 42, the power output shaft 6 drives the shovel 2 and the cutting blade 7 to perform centrifugal cutting. At this point, the separated leek stalks naturally separate along the guide surfaces on both sides of the V-shaped plate 42, effectively preventing the stalks from gathering towards the center. This also prevents the leek stalks from getting tangled on the chain 4. A partition 43 is fixedly installed at the bottom of the V-shaped plate 42, with a notch 430 on one side of the partition 43. The throwing bucket 2 is located at the notch 430. The partition 43 prevents the leek stalks from getting tangled on the chain 4.

[0033] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A leek cutting mechanism, mounted on the front end of a mobile vehicle via a connecting bracket, the mobile vehicle being equipped with a drive mechanism, characterized in that, include: A cutting gearbox, which is fixed on the connecting bracket and whose input end is connected to the drive mechanism for transmission; The power output shaft is vertically arranged. The top end of the power output shaft is connected to the output end of the cutting gearbox, and the bottom end is coaxially connected to the swing barrel. The outer ring wall of the opening of the swing barrel is coaxially fitted with a ring disc. Multiple cutting blades for cutting chives are fixed around the circumference of the ring disc.

2. The leek cutting-off mechanism according to claim 1, characterized in that, The drive mechanism includes a driven sprocket, a drive sprocket, and a drive component for rotating the drive sprocket; The driven sprocket is fixedly mounted on the output end of the cutting gearbox, and a chain is mounted on both the driven sprocket and the drive sprocket.

3. The leek cutting-off mechanism according to claim 2, characterized in that, The drive unit is a diesel engine or a gasoline engine.

4. The leek cutting-off mechanism according to claim 2, characterized in that, It also includes a tensioning mechanism, which comprises a tensioning sprocket, a slide, and a spring; The vertically arranged slide is fixedly connected to the connecting bracket, and a slider is slidably mounted thereon; An extension block is fixedly connected to the slider, and the tensioning sprocket is rotatably mounted on the extension block via a connecting shaft and meshes with the chain; The two ends of the vertically arranged spring are fixedly connected to the top wall of the slider and the slide rail, respectively.

5. The leek coppicing mechanism according to any one of claims 1-4, characterized in that, It also includes a dispersing mechanism, which includes a truss and a V-shaped plate, with the two ends of the truss respectively fixedly connected to the closing end of the V-shaped plate and the connecting bracket; The flared end of the V-shaped plate faces the power output shaft; The V-shaped plate, the power output shaft, and the moving vehicle are arranged in sequence.

6. The leek cutting-off mechanism according to claim 5, characterized in that, A partition is fixedly installed at the bottom of the V-shaped plate, and a notch is opened on one side of the partition, with the throwing bucket located at the notch.

7. The leek cutting-off mechanism according to claim 5, characterized in that, The corner of the V-shaped plate is located directly in front of the power output shaft.

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